Gage-cock.



J. R. WHEARY.

GAGE COCK.

-APPLIOATION FILED AUG. 19, 1912.

' Patented June 10, 1913.

m r N k i g JOSEPH RICHARD WHEARY, OF EAST RADFORD, VIRGINIA.

GAGE-COCK.

Specification of Letters Patent.

Patented June 10, 1913.

Application filed August 19, 1912. Serial No. 715,956.

To all whom it may concern:

Be it known that I, Josarn R. VVIIEARY, a citizen of the United States,and a rcsi' dent of East Radtord, county of Montgomery, State ofVirginia, have invented certain new and useful Improvements in Gageocks, of which the following is a full and i clear specification,reference being bad to the accompanying drawings, in which isrepresented a longitudinal sectional view of the cock complete.

The object of this invention is to provide a gage cock which may beconstructed at a minimum of expense and which will be durable as well aseconomical to maintain in first class condition; and this inventionconsists of certain novel features of construction hereinafter describedand claimed.

in the drawing a designates the tubular casing or body of the cock whichis adapted to be screwed or otherwise fastened to the boiler shell I; inthe usual manner, the inner end of the casing being pr vidcd with a hole0 which communicates with the water and steam space of the vapor boiler.Screwed into the outer end of the casing a. is a tubular plug (1 whichat its inner end is formed into a reduced tubular extension (3 whichclosely fits into the narrowed tubularpart f of the casing, the innerextremity of this extension 0 being beveled to form a valve sea};

'fhe reduced part of the casing constitutes the valve chamber f in thatwithin it is inclosed the valve /lwhich is adapted to be kept normallyagainst. the seat g by means 0' a coil spring said spring surrolmdiugticstem .j of the valve and being confined ylQhVQtlll the valve and anannular shoulder formed at the inner end of the valve chamher.

The stem is long enough to extend a. short distance into the passage 0when the valve /L is seated so that the act of opening the valve bypressing the valve inwardly toward the boiler causes the stem to passinto and through the passage 0 and thus clear the same of accumulationsof mud and scale, thus always preventing the passage 0 being clogged orplugged with deposits.

The valve is held normally to itsscat by the spring 2' and the pressurefrom theboilcr, and it is unseated by means of a rod Z which extendsthrough the tubular plug d and is mounted adjustably in a cap or bonnetm screwed over the outer end of the valve casing a, this rod beingcentrally threaded through the center of the cap and provided with ahand wheel n. When the valve is opened by means of this rod the steam orformed therein and thence out through 11nopening 6 in the valve casing.To properly position the seat 9 this tubular plu d is, as stated madelongitudinally adjusta to by being threaded into the outer end of thecasing, and in order that the lateral escape opening 0 in the plug shallnot at any time be obstructed by this longitudinal adjustment of theplug, I provide an annular chamber (7 in the casing a at a pointcoincident with the escape or discharge openin 7; in the casing, wherebythe lug d wil have a sutliciently wide range oi adjustment without atany time closing the communication of the radial opening 0 with thedisharge passage 7).

One serious ditficulty with the gage cocks now in use is that theengineer or fireman in closing the cock frequently forces the valve toits seat so hard that the valve and the seat are cut; with my devicethis is entirely overcome by reason of the fact that I rely upon thepressure from the boiler to automatically close the valve when theoperator adjusts back the opening rod Z.

It will be observed that the outer end of the plug (1 extends beyond theouter end of the casing a and is enlarged laterally and formed into anut d by which this screw may be readily 'u'lljtlSteCl; and it will beunderstood also that the valve casing and the cap or bonnet may beformed angular in transverse section for convenience in assembling theparts and attaching the device to the boiler.

Having this described my invention, what I claim as new and desire tosecure by Letters Patent, is

1. In a gage cook, the combination of a casing adapted to be attached toa boiler and provided with an inlet passage at its inner end and alateral discharge opening near its outer end, the interior of the casingbeing enlargedto form an annular chamber coincidental with said lateraldischarge passage and the inner portion of the valve casing beingcontracted to provide the tubular valve chamber f, an adjustable plugscrewed into the outer end of the casing and having a lateral passagecommunicating with the said annular chamber formed in the casing andprovided with a reduced tubular extension e fitting into the outer endof the valve chamber and having its inner end formed into a valve seat,an inwardly opening valve normally seated against said seat, a. valveopening rod extending through said plug, and a cap or bonnet supportingsaid rod and attached to the outer end of the casing.

2. In a gage cock the combination of a casing provided with an inletpassage at its inner end and having its inner end adapted for attachmentto a boiler, said casing being provided with a lateral discharge openingat its outer end, a tubular plug fitted into the outer end of the casingand having its inner end-formed into a valve seat facing inwardly, saidplug being provided with a lateral passage putting its interior intocommunication with the discharge passage of the casing, acap or bonnetsecured'to the vouter end of the casing and inclosing the outer end ifsaid plug, and an adjustable rod carrie by said cap and extendinglongitudinally through the plug so as to be available for opening thevalve, for the purposes set fort 3. A gage cock consisting of a tubularcasing adapt-ed at one end for attachment to the boiler and having itsinterior enlarged at the other end, this enlarged part being providedwith internal screw threads and a lateral discharge passage, a tubularplug screwed into the enlarged outer portion of the casing and providedwith a lateral passage which communicates with the interior of theenlarged part of the casing, the inner end of this plug being reduced indiameter to form an annular shoulder, this reduced portion extendinginto the narrow diameter of the casing and having its inner end formedinto a valve seat, a cap screwed upon the outer end of the enlarged partof the casing, a valve opening stem working through said cap and saidplug and adapted to project beyond the valve seat, and a valve normallyclosing against said valve seat.

In testimon whereof I hereunto afiix my signature in tie presence of twowitnesses.

JOSEPH RICHARD WHEARY.

Witnesses:

' H. P. ANDERSON, W. M. MARTIN.

